Water-heater



(No Model.)

- 2 Sheds-Sheet 1. G, W. BUTTERIE'I'ELD.

WATER HEATER.

No. 414,939. Patented Nov 12, 1889.

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H u W G a d 0 M 0 w No. 414,939. Patented Nov. 12, 1889.

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GEORGE \V. BUTTERFIELD, OF LYNDON, ASSIGNOR TO J. C. EATON & CO., OFLYNDONVILLE, VERMONT.

WATER-HEATER.

' SPECIFICATION forming part of Letters Patent No. 414,939, datedNovember 12, 1889.

Application filed February 21, 1889. Serial No. 300,697. (No model.) I

To all whom it may concern:

Be it known that I, GEORGE WV. BUTTER- FIELD, a citizen of the UnitedStates, residing at Lyndon, in the county of Caledonia and State ofVermont, have invented certain new and useful Improvements inWater-Heaters,

of which the following is a specification.

This invention relates to that class of waterheaters adapted for usewithin doorsi'. 6., in troughs sitting in barns and the like, where itwould not be advisable to use wood or coal as fuel.

The invention consists of a cylinder or case adapted to be Whollysubmerged, having water-tight heads formed concave or conical andprovided with one or more water-circulatin g passages from its bottom toits top, and tubes for admitting air and carrying off smoke, all ofwhich will be fully set forth in the following specification and claimsand clearly illustrated in the accompanying drawings, forming aninseparable part thereof, of which Figure 1 represents a verticalsectional, view of a heater provided with two water-circulating tubesonea vertical cylinder and the other coiled spirally around it. Fig. 2shows a heater having a single water-circulating tube formed into aspiral coil. Fig. 3 shows a modification of Fig. 2.

- Heaters adapted for heating water for stock and designed to use woodor coal for fuel, where the troughs containing the water are undercover, are more or less objectionable, inasmuch as the rates ofinsurance are increased and the necessary removal of ashes consumes toomuch time. To overcome these objections, oil-lamps have been substituted1 or other fuel, said lamps being inclosed within a water-tight case,which is adapted to be submerged under water; but such heaters do notfulfill the requirements, as the heat obtained from a lamp is notsufficient to rapidly raise the temperature of the water. In order to dothis, the oil must be burned while in direct contact with the submergedshell or case, or, at least, the flame created thereby must come incontact with the sides and top of'said case; and this is precisely whatI am enabled to accomplish in a heater of my improved construction.

To the shell or case A,which may be of Russia or galvanized iron, Isolder or otherwise secure theconical or concaved heads B B, formed ofthe same material, taking care that the joints are made perfectlywater-tight. In the head B one or more openings may be formed for theadmisssion of one or more water-circulating tubes, to be hereinafter 6X-plained, and in the head B a central opening is provided of the propersize to accommodate a smoke-pipe O.

A draft-pipe D takes air above the surface of utes itself around theouter-edge of the bottom head B, and in burning the flames follow thesides of the case (more or less) in their course to the smoke-pipe O.The shell or case A should be supported in a tub or trough in a mannerto enable the water to circulate underneath the bottomB either byproviding said case with suitable feet or as shown in the drawings, anda tube E, having one end secured to the bottom head B in a centralopening formed for the purpose, and the other end connected by a smalltube e to the smoke-pipe O, at one side, forms an interior circulatingmedium for the water. In

order to get the most benefit or best results from watercirculatingtubes, however, a smaller tube or pipe E, which may be connected by acoupling 6 with a pipe for supplying water to the trough or tub in whichthe heater is placed, may be introduced either by means of an opening inthe bottom head B or the lower part of the interior shell or tube E,rising .within the space between the latter tube and the cylinder A inthe form of a coil, passing through one side of the smokepipe G, as seenin Fig. 1.

After oil has been introduced in the manner hereinbefore specified, bydropping a lighted match down the draft-tube 1) the oil is ignited and avery powerful heat is the immediate result, as the shell or tube E andthe coil E greatly increase the radiating-s11rface. \Vhere less heat isrequired, or for the purposes of economy, the heater may be eonstructedwith simply the coil E, as in Fig. 2, or with a small straight pipe E,as in Fig. 3.

The heads B B may be made flat; but I prefer to make them conical orconcave, as shown, thereby obtaining additional hcatin surface.

lhe cylinder A may be submerged to any depth desired, so 1on5 as thesmoke and draft tubes C D extend above the surface of the water, anddampers e (1 may beplaced, respectively, in each, if desired; and incase it is desired to use the heaterin a tub or trough which is notunder cover, caps or covers, respectively, C D, may be attached to thepipes C D.

Having described my improvements, what I claim as new, and desire tosecure by Letters Patent, is-

1. A water-heater consisting of a cylinder having concave heads, aninterior water-circulating; tube, and suitable draft and smoke pipes,substantially for the purpose set forth.

A water-heater eon'iprising a cylinder having concave heads, an interiorwater-en'- culatine" pipe-coil, substantially as shown, and suitabledraft and smoke-conducting pipes.

23. A water-heater compising a cylinder having concaved heads, suitabledraft and smoke-conducting pipes, and one or, more interiorwater-oirculating tubes connecting, the lower concaved head withapertures formed in the said smoke-pipe, all substantially for thepurpose shown.

4. A water-heater comprising a cylinder having concave heads and aninterior cylindrical water-circulating tube, a smaller water-circulatingpipe-coil interposed between the outer cylinder and saidwater-oirculating cylinder, and suitable draft and smoke-conductingpipes, all formed and connected substantially in the manner shown.

In testimony whereof Iaffixmy signal are in presence of two witnesses.

GrEORGE \V. 1-3UT"ERFIELD.

Witnesses:

W. J. STANTON, J12, 13. F. LINCOLN.

